Why is my Gefran Inverter showing a DC link undervoltage alarm?
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Christine JacobsAug 22, 2025
A DC link undervoltage alarm may occur in your Gefran Inverter due to the mains voltage being too low or overextended voltage drops or poor cable connections (e.g. loose contactor terminals, inductance, filter). To resolve this, check the connections and mains voltage.
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Jennifer Snyder MDSep 2, 2025
What should I do if my Gefran Inverter is overloaded?
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Melissa HarmonSep 2, 2025
If your Gefran Inverter is overloaded, check that the load is not excessive, that accelerations are not excessive, and that the overload cycle is within allowed limits.
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Robert StewartSep 1, 2025
What does a desaturation condition mean on my gefran ADL500 Inverter?
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Alexandria JohnsonSep 1, 2025
A desaturation condition on your Gefran Inverter signifies an instantaneous overcurrent in the IGBT bridge. Try switching the drive off and then on again. Also, check the condition of the braking resistor isolation. If the alarm persists, contact the technical service centre.
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Taylor ButlerAug 30, 2025
What causes a motor overload alarm on a Gefran Inverter?
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Christopher MeyerAug 30, 2025
A motor overload alarm on your Gefran Inverter indicates that the current absorbed during operation is greater than that specified on the motor data plate. To resolve this, reduce the motor load or increase the size of the motor.
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jenniferroseAug 29, 2025
Why is the heatsink temperature too high on my gefran ADL500 Inverter?
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derek85Aug 29, 2025
A heatsink temperature too high alarm on your Gefran Inverter can occur if the cooling fan isn't working correctly, the heatsinks are clogged, or the openings for cabinet cooling air are blocked. Verify the correct operation of the cooling fan, check that the heatsinks are not clogged, and ensure that the openings for the cabinet cooling air are not blocked.
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Carrie RoweAug 27, 2025
How do I troubleshoot a ground fault alarm on a Gefran Inverter?
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Jason WallaceAug 28, 2025
To troubleshoot a ground fault alarm (ground short circuit alarm) on your Gefran Inverter, check the drive and motor wiring. Also, ensure that the motor is not grounded.
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Eric PenningtonAug 27, 2025
What to do if Gefran Inverter shows an overcurrent alarm?
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Samantha MitchellAug 27, 2025
If your Gefran Inverter is showing an instantaneous overcurrent protection intervention alarm, it might be caused by incorrect settings of the current regulator parameters. You should check the current regulator parameters (menu 12.3) and inspect the wiring towards the motor.
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Nicholas WilliamsAug 25, 2025
What causes a motor overtemperature alarm on a gefran ADL500?
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Meghan HarrisAug 26, 2025
A motor overtemperature alarm on your Gefran Inverter can be triggered by several factors:
* A load cycle that is too heavy.
* The motor being installed in an environment with a high ambient temperature.
* A faulty motor blower fan.
* Excessive load at slow speeds if the motor lacks a blower.
* Operating the motor below its rated frequency.
To address this, change the processing cycle or use a cooling fan to cool the motor.
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garciastevenAug 23, 2025
How to fix gefran ADL500 Inverter DC link overvoltage alarm?
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Eric ScottAug 23, 2025
If your Gefran Inverter displays a DC link overvoltage alarm because the energy recovered from the voltage arriving at the drive power section is too high, you can extend the deceleration ramp. Alternatively, use a braking resistor connected to the specific terminals to dissipate the energy recuperation.
gefran ADL500 Specifications
General
Series
ADL500
Frequency Range
50/60Hz
Cooling Method
Forced Air Cooling
Input Voltage
380-480V
Output Voltage
0-480V
Power Range
0.75-500 kW
Control Method
V/F control, Sensorless vector control
Communication Protocols
Modbus RTU, CANopen
Protection Functions
Overcurrent, Overvoltage, Undervoltage, Overheating, Short circuit, Ground fault